The Namaqua arrowhead (Phasis clavum) is a butterfly of the Lycaenidae family. It is found in South Africa and Namibia. The wingspan is 29-39.5 mm for males and 35–44 mm females. Adults are on wing from September to November and sometimes January. The larvae feed on Rhus and Melianthus species. They are associated with ants of the Crematogaster genus.